The United States urged India to cooperate with Canada’s investigation into the killing of Sikh separatist leader Hardeep Singh Nijjar, emphasizing the seriousness of the allegations. Diplomatic tensions have escalated following India’s expulsion of Canadian diplomats and concerns over safety amid accusations from Prime Minister Justin Trudeau.

India is not cooperating with Canada on the latter’s investigation into the killing of a Sikh separatist last year, the United States alleged Tuesday.

India has denied the allegations but has constituted an internal investigations team to look into it